Details
| Original language | English |
|---|---|
| Pages (from-to) | 750-756 |
| Number of pages | 7 |
| Journal | Journal of the American Society for Horticultural Science |
| Volume | 126 |
| Issue number | 6 |
| Early online date | Nov 2001 |
| Publication status | Published - 2001 |
Abstract
Concepts of above-ground dry matter partitioning in cauliflower [Brassica oleracea L. (Botrytis Group)] as dependent on nitrogen (N) supply and light environment are presented. Leaf and stem partitioning depends on a functional relationship between stem dry weight and leaf area, independent of N status. Dry matter partitioning into the inflorescence is sink-limited (potential capacity) at the beginning, and source limited (daily available assimilates) later. The intrinsic specific growth rate of the inflorescence is dependent on leaf N content. The model is parameterized and evaluated with data from field experiments. Applied to an independent data set, the model predictions of proportions of inflorescence, leaf, and stem on total dry matter corresponded with measurements (r = 0.84, 0.92 and 0.22, respectively) for different N fertilization rates and light treatments.
Keywords
- Brassica oleracea, Carbon partitioning, Generative growth, Model, Source-sink concept, Vegetative growth
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Genetics
- Agricultural and Biological Sciences(all)
- Horticulture
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In: Journal of the American Society for Horticultural Science, Vol. 126, No. 6, 2001, p. 750-756.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Nitrogen status and light environment influence dry matter partitioning in cauliflower
AU - Alt, C.
AU - Kage, H.
AU - Stützel, H.
PY - 2001
Y1 - 2001
N2 - Concepts of above-ground dry matter partitioning in cauliflower [Brassica oleracea L. (Botrytis Group)] as dependent on nitrogen (N) supply and light environment are presented. Leaf and stem partitioning depends on a functional relationship between stem dry weight and leaf area, independent of N status. Dry matter partitioning into the inflorescence is sink-limited (potential capacity) at the beginning, and source limited (daily available assimilates) later. The intrinsic specific growth rate of the inflorescence is dependent on leaf N content. The model is parameterized and evaluated with data from field experiments. Applied to an independent data set, the model predictions of proportions of inflorescence, leaf, and stem on total dry matter corresponded with measurements (r = 0.84, 0.92 and 0.22, respectively) for different N fertilization rates and light treatments.
AB - Concepts of above-ground dry matter partitioning in cauliflower [Brassica oleracea L. (Botrytis Group)] as dependent on nitrogen (N) supply and light environment are presented. Leaf and stem partitioning depends on a functional relationship between stem dry weight and leaf area, independent of N status. Dry matter partitioning into the inflorescence is sink-limited (potential capacity) at the beginning, and source limited (daily available assimilates) later. The intrinsic specific growth rate of the inflorescence is dependent on leaf N content. The model is parameterized and evaluated with data from field experiments. Applied to an independent data set, the model predictions of proportions of inflorescence, leaf, and stem on total dry matter corresponded with measurements (r = 0.84, 0.92 and 0.22, respectively) for different N fertilization rates and light treatments.
KW - Brassica oleracea
KW - Carbon partitioning
KW - Generative growth
KW - Model
KW - Source-sink concept
KW - Vegetative growth
UR - http://www.scopus.com/inward/record.url?scp=0035170487&partnerID=8YFLogxK
U2 - 10.21273/jashs.126.6.750
DO - 10.21273/jashs.126.6.750
M3 - Article
AN - SCOPUS:0035170487
VL - 126
SP - 750
EP - 756
JO - Journal of the American Society for Horticultural Science
JF - Journal of the American Society for Horticultural Science
SN - 0003-1062
IS - 6
ER -